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Nibble Magazine
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REVERSE KEY DEMO.bas
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BASIC Source File
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2023-02-26
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1KB
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29 lines
1 REM ******************************
2 REM * REVERSE KEY DEMO *
3 REM * BY PHILLIP ROWLEY *
4 REM * COPYRIGHT (C) 1982 *
5 REM * BY MICRO-SPARC INC *
6 REM * LINCOLN, MA. 01773 *
7 REM ******************************
8 REM <<< NOTE: IN LINES 45 AND 110: 'F'=CTRL F; 'I'=CTRL I; 'N'=CTRL N
10 PRINT CHR$(4)"BRUN REVERSE KEY"
15 HOME : HTAB 10: PRINT "REVERSE KEY DEMO"
20 HTAB 10: PRINT "================": PRINT
25 I$ = CHR$(9):N$ = CHR$(14):F$ = CHR$(6)
30 LIST 25: LIST 35: PRINT
35 PRINT "AAAA"F$"AAAA"N$"AAAA"I$"AAAA"N$"AAAA"
40 PRINT : PRINT "OR USING EMBEDDED CONTROL-CHARACTERS": PRINT : LIST 45
42 FOR T = 0 TO 9999: NEXT
45 PRINT "AAAA<CTRL-F>AAAA<CTRL-N>AAAA<CTRL-I>AAAA<CTRL-N>AAAA"
50 PRINT : PRINT "LISTING OF LINES WHEN REVERSE KEY IS ON SHOWS HOW LINE WILL PRINT"
55 PRINT : PRINT "LISTING WHEN 'REVERSE KEY' IS OFF SHOWS NOTHING UNUSUAL"
60 PRINT : PRINT "PR#0"
65 PR# 0
70 LIST 45
75 FOR T = 0 TO 9999: NEXT
80 PRINT : PRINT "RESTART 'REVERSE KEY' - CALL 768"
85 CALL 768
90 PRINT : LIST 45
100 PRINT : PRINT "REVERSE KEY IS NOW ON FOR YOU TO TRY"
110 PRINT : PRINT "LINES CONTAINING <CTRL-F>EMBEDDED<CTRL-N> CONTROL CHARACTERS CANNOT BE EDITED"
120 PRINT : PRINT "LINES USING STRING VARS CAN BE EDITED E.G.": PRINT : LIST 35